Anyone Know What This Tool Is? Steel Fork/Brush/Thing

[FullRaceMerc]

I found this handmade tool in a wall at my house during a plumbing repair. It looks like it might have been dropped down the wall during construction. Details on the house look like the it was begun before WWII & finished during or shortly after. City records show 1924, but that may have been another older building on the property. 2 story wood frame with 1x skip sheathing type diagonal bracing on the exterior. Stucco exterior with a Spanish looking finish, plaster on wood lath in places inside, plaster on button board in others.

Anyone know what it is?

I was guessing it might have been used to scratch stucco, but don't really know. Pinstripe suit striping brush?

Wire tines. It is probably 12" across the tines. It is sitting on a narrow plate rail in my office at work.

 

[outdoorspace]

Definitely looks like a plaster scarifier/scratcher.

 

[kctyphoon]

It looks like that rake thing people use for cleaning horse stalls.

 

[KenC]

One of the coats of plaster is called 'scratch coat'. I think you've found the tool used to scratch it to allow the top coat to key on it.